CMPP6028R TR

Overview

The CMPP6028R TR is a surface-mount silicon programmable unijunction transistor housed in an SOT-23 package. It supports a maximum Gate-Cathode Forward Voltage of 40V and a DC Forward Anode Current of 150mA, with a power dissipation rating of 167mW at 25°C. The device operates within a junction temperature range of -50°C to +100°C and features a storage temperature range from -55°C to +150°C. Electrical characteristics include a peak current (IP) ranging from 0.15μA to 1.0μA depending on gate resistance, and a valley current (IV) adjustable between 25μA and 1.0mA.

Feature Summary

• Features adjustable intrinsic standoff ratio and valley current parameters for customizable circuit behavior.
• Designed for surface mount applications utilizing the compact SOT-23 package configuration.
• Capable of handling high peak repetitive forward currents up to 2.0A under specific duty cycle conditions.

Applications

• Oscillator circuits requiring programmable timing intervals
• Triggering circuits for thyristors or triacs
• Timing delay generation in pulse networks

Procurement Notes

Verify component status prior to ordering as this part has been transitioned to End of Life status by Central Semiconductor Corp. Last purchase orders may be placed within six months of the notice date, with final shipments occurring twelve months after notification. Confirm availability through authorized distributors or stock-only channels, as standard production supply is discontinued.

Selection Notes

Select this component when designing surface-mount circuits requiring a programmable unijunction transistor with specific valley and peak current adjustments. Ensure the design accommodates the 167mW power dissipation limit and verify that the SOT-23 footprint aligns with the PCB layout requirements. Consider the operating temperature range limits during thermal analysis.

Part Context

This device belongs to the CMPP6027R/CMPP6028R series of surface-mount silicon programmable unijunction transistors manufactured by Central Semiconductor Corp. These components are designed to offer adjustable electrical characteristics such as valley current and intrinsic standoff ratio, providing flexibility in oscillator and triggering applications compared to fixed-parameter devices.

Replacement Considerations

No official replacement part numbers are provided by Central Semiconductor Corp for the CMPP6028R TR. The manufacturer indicates that no direct substitutes are available and suggests contacting [email protected] for assistance in locating alternate sources.

FAQ

What is the marking code for the CMPP6028R?

The marking code for the CMPP6028R is P28.

What are the lead definitions for the SOT-23 package?

Pin 1 is the Anode, Pin 2 is the Cathode, and Pin 3 is the Gate.

What is the maximum non-repetitive forward current rating?

The peak non-repetitive forward current (ITSM) is rated at 5.0A for a duration of 10μs.